[CastXML] how to print the exact same declaration as in the header ?

[Matt]

> Yes that one.
Will do, I might test a few things before.

> Great. With minimal code examples replicating the problem
> we should be able to fix that. But it may take time.
The code here https://github.com/gccxml/pygccxml/issues/62 should be
*minimal* , i.e., standalone (I forgot to remove some comments but
that should be readable). I run it on ubuntu linux 16.04 with glibc
2.23 (not that it should change anything), I 've added the details on
the issue.


> Michka
>
>>
>> Thanks for your help. Much appreciated already :)
>>
>> Matt
>>
>>> I will not be able to tackle all the problems at once,
>>> so it is better to keep that documented in the bug tracker.
>>>
>>> Thanks
>>>
>>> Michka
>>>
>>>
>>>
>>> Thanks for your help :)
>>>
>>>
>>> Cheers
>>>
>>> Michka
>>>
>>>
>>>
>>> 2016-07-22 16:21 GMT+02:00 Michka Popoff <michkapopoff at gmail.com>:
>>>
>>> Hi
>>>
>>> thanks for the nice comments.
>>>
>>> Using print on declarations in pygccxml is a nice way to debug you code,
>>> but often you may not want to rely on the __str__ implementation in you real
>>> code.
>>>
>>> The output of the __str__ method may vary depending on you compiler /
>>> platform / code,
>>> and I can not guarantee that this will work in a reliable way in all the
>>> situations.
>>> This is something I may add to the documentation; __str__ is for debugging
>>> purposes only.
>>>
>>> It is probably better to build the string you want by using the .name,
>>> .return_type,
>>> .arguments ... attributes. This is often more flexible, and also more
>>> performant,
>>> as you select only the things that you are interested in.
>>>
>>> Cheers
>>>
>>> Michka
>>>
>>>
>>> On 22 Jul 2016, at 16:10, Matt <mattator at gmail.com> wrote:
>>>
>>> I found the code in declarations/free_calldef.py and hacked it
>>> locally, I might copy/paste the code in my script later then.
>>>
>>> Sorry for the noise
>>>
>>> 2016-07-22 15:36 GMT+02:00 Matt <mattator at gmail.com>:
>>>
>>> Hi,
>>>
>>> I've just started with pygccxml/castxml and I must admit it's quite
>>> impressive: doc/examples and worked straightout of the box.
>>>
>>> I want to use pygccxml to generate wrapper functions around glibc
>>> functions. I can't use LD_PRELOAD or --wrap techniques so I have to
>>> copy/paste the declarations of these functions which is a pain.
>>> I am trying to automate this copy/paste via pygccxml.
>>>
>>> So far, I have:
>>> ==
>>> func1a = global_namespace.free_function(name="printf")
>>> print(func1a)
>>> ==
>>> which output:
>>> extern int printf(__restrict__ char const * __format, ...) [free function]
>>> is very near to what I want:
>>> extern int printf(__restrict__ char const * __format, ...)
>>>
>>> I have done dir(func1a) to see which members I could use and grepped
>>> for __str__ to see the magic but miserably fail to find the location.
>>> How could I output the same declaration as in the header please ?
>>>
>>>
>>> Cheers
>>>
>>> Nb: In the list of  programs using pygccxml you could add www.nsnam.org
>>>
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>>>
>